Pilot not aware of other traffic in pattern cuts in front of traffic unrpted by tower.

Attributes
ACN	451590
Time
Date	199910
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : dpa.airport
State Reference	IL
Altitude	msl single value : 1500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tower : dpa.tower
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Flight Plan	VFR
Aircraft 2
Controlling Facilities	tower : dpa.tower
Operator	general aviation : personal
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : approach
Route In Use	approach : traffic pattern
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 22 flight time total : 159 flight time type : 139
ASRS Report	451590
Person 2
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private
Events
Anomaly	non adherence : clearance
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

Advised by ATC to enter downwind for runway 33 at about 6 mi out and report at 2 mi. Reported at 2 mi, but due to frequency congestion reported again at 1 mi north of field on downwind. ATC responded, 'follow barron on 2 mi final for runway 33.' at northwest end of runway 33, observed plane overflying runway 33. Continued on downwind to water tower which is usual landmark for turning base. Called tower, 'is X clear for runway 33?' tower responded 'X clear for runway 33.' turned back, and upon turning final, tower called 'X verify you have traffic in sight.' responded 'X is on final.' tower responded 'X clear land runway 33,' 'Y slow it down follow cessna that got in front of you.' landed on runway 33 and expedited turnoff. At the time of the incident, there was additional traffic landing at other runways, and in pattern for other runways. Call to verify clearance was made while on downwind and response from tower was 'clear for runway 33' -- no mention was made of additional traffic, or to follow traffic, or #2 for runway. At that time, only clear to land.'

Original NASA ASRS Text

Title: PLT NOT AWARE OF OTHER TFC IN PATTERN CUTS IN FRONT OF TFC UNRPTED BY TWR.

Narrative: ADVISED BY ATC TO ENTER DOWNWIND FOR RWY 33 AT ABOUT 6 MI OUT AND RPT AT 2 MI. RPTED AT 2 MI, BUT DUE TO FREQ CONGESTION RPTED AGAIN AT 1 MI N OF FIELD ON DOWNWIND. ATC RESPONDED, 'FOLLOW BARRON ON 2 MI FINAL FOR RWY 33.' AT NW END OF RWY 33, OBSERVED PLANE OVERFLYING RWY 33. CONTINUED ON DOWNWIND TO WATER TOWER WHICH IS USUAL LANDMARK FOR TURNING BASE. CALLED TWR, 'IS X CLR FOR RWY 33?' TWR RESPONDED 'X CLR FOR RWY 33.' TURNED BACK, AND UPON TURNING FINAL, TWR CALLED 'X VERIFY YOU HAVE TFC IN SIGHT.' RESPONDED 'X IS ON FINAL.' TWR RESPONDED 'X CLR LAND RWY 33,' 'Y SLOW IT DOWN FOLLOW CESSNA THAT GOT IN FRONT OF YOU.' LANDED ON RWY 33 AND EXPEDITED TURNOFF. AT THE TIME OF THE INCIDENT, THERE WAS ADDITIONAL TFC LNDG AT OTHER RWYS, AND IN PATTERN FOR OTHER RWYS. CALL TO VERIFY CLRNC WAS MADE WHILE ON DOWNWIND AND RESPONSE FROM TWR WAS 'CLR FOR RWY 33' -- NO MENTION WAS MADE OF ADDITIONAL TFC, OR TO FOLLOW TFC, OR #2 FOR RWY. AT THAT TIME, ONLY CLR TO LAND.'

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.